20112422431 has 8 divisors (see below), whose sum is σ = 21281817600. Its totient is φ = 18954111960.

The previous prime is 20112422401. The next prime is 20112422459. The reversal of 20112422431 is 13422421102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20112422431 - 2⁵ = 20112422399 is a prime.

It is a super-2 number, since 2×20112422431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112422401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2767441 + ... + 2774698.

It is an arithmetic number, because the mean of its divisors is an integer number (2660227200).

Almost surely, 2^20112422431 is an apocalyptic number.

20112422431 is a deficient number, since it is larger than the sum of its proper divisors (1169395169).

20112422431 is a wasteful number, since it uses less digits than its factorization.

20112422431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5542349.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 20112422431 its reverse (13422421102), we get a palindrome (33534843533).

The spelling of 20112422431 in words is "twenty billion, one hundred twelve million, four hundred twenty-two thousand, four hundred thirty-one".